Vapor burner



R. D. LESLIE AND F. E. H. SNOWDEN.

VAPOR BURNER.

APPLICATIONFILED NOV. 27,1920- l,406,396. Patented Feb. 14, 1922.

Fig. 2.

lnvenfors. Robert D. .Leshe Frank E. H. Snowden by M wi /1M UNITED STATES PATENT OFFICE.

ROBERT DOWNIE LESLIE AND FRANK ERNEST HARGREAVES SNOWDEN', 0F PERTH.

' WESTERN.AUSTRALIA, AUSTRALIA.

VAPOR BURNER.

Specification of Letters Patent. Patented Feb. 14, 1922.

Application filed, November 27, 1920. Serial No. 426,786.

To all whom it may concern;

Be it known that we, Ronnnr DOWNIE LnsLin and FRANK ERNEST H'AneRnAvns Snowmen, subjects of the King of Great Britain and Ireland, both residing at Number 120 Stirling Street, in the City of Perth, Vestern Australia, in the Commonwealth of Australia, have invented new and useful improvements in Vapor Burners, of which the following is a specification.

This invention relates to improvements in. vapor burners of the well-known type, wherein hydrocarbon liquid is forced under pressure through a heated tube and is thereby vaporized and then passed through a small nipple orifice and finally burnt.

These burners have not hitherto been en tirely satisfactory, mainly, it is considered, on account of inefficient mixing of the vapor and air before combustion is effected.

Now the object of the present invention is to overcome the imperfect mixing of the vapor and air, thereby ensuring a more satisfactory obtention of the utilizable heat of the fuel.

The invention consists broadly in the provision of an upwardly extending open conduit into which the vapor is blown and thereby draws in air, the mixed gases being then deflected by an inverted cup which reversesthe direction of flow and leads the gaseous mixture into an outer mixing vessel fro-1n whence it passes through a gauze covered top and into the atmosphere, where it burns.

To enable the invention to be readily understood, reference will now be made to the accompanying sheet of explanatory drawings in which Fig. 1 is an elevation partly in section of the burner portion of the apparatus.

Fig. 2 is an elevation at right-angles to Fig. 1.

Fig. 3 is a plan of the burner in the posi tion shown in Fig. 1.

Fig. 4 is a plan of that part of the burn er which supports the mixing chamber.

Referring to the drawings: A vertical conduit 1 leads the fuel under pressure to the vaporizing ring 2 from'which leads the small conduit 8 supplying the nipple 4. Supported above the nipple is a circular member 5 having an upstanding circular flange 16 which forms with the peripheral .The upper open end of the cylinder covered with gauze 15 or the like. Said portion of said member 5 an annular receptacle for the starting sp1r1t. The central port on of the member 5 is upwardly domed as shown at 6 and has a conduit? open at the member 5 on the inside of the spirit reservoir and the said cylinder is contracted somewhat at 12 to form. a continuous shoulder to carry the lugs 13 of an inverted deflecting cup let hung over the conduit 7. 11 is cylinder 11 forms within it a mixing chamber in which the vaporized fuel and air are mixed.

The operation of the burner after starting is as follows. The fuel under pressure is forced up theconduit 1, passes around the vaporizing tube 2, then through the conduit 3 and is emitted under pressure from the nozzle 4. The vapor passes up the conduit 7 and draws in air, and the mixture is then deflected by the inverted cup 14 and passes into the mixing vessel 11, from whence it finally passes through the gauze 15 and into the atmosphere where it burns and incidentally heats the vaporizer tube 2.

It will be obvious that those skilled in the art will be able to modify the constructional details of this apparatus without however departing from the spirit and scope of the invention as defined iu the appended claims.

IV e claim:

1. In a vapor burner an inverted deflecting cirp carried by lugs supported on the shoulder of a surrounding mixing vessel having a gauze covered top.

2. In a vapor burner a spirit cup having a downwardly turned lug which fits into a slot formed in an adjustable clip attached to the fuel conduit.

In a vapor burner a member the outer portion of which forms a spirit cup, and having a portion cut away to conformto a fuel conduit, a lug on such member, an upwardly domed portion towards the centre thereof and an open conduit trally therein.

4:. In a vapor burner a member the outer portion of which 'forms a spirit cup, and

disposed cenhaving a portion cut away to conform to the spirit cup and the upper end being covered with gauze through which the mixed air and vapor pass.

5. In a vapor burnerthe combination of a member the outer portion of which is formed into a spirit cup, an open conduit centrally disposed thereto, an, inverted defleeting cup hungover thesaid conduit, alarger conduit surrounding the said cup and forming a, mixing chamber, and a gauze covering at the top of the mixing chamber.

6. A vapor burner comprising the CODI- bination ofa fuelreservoir, a conduit leadingthe fuel under pressure to a vaporizer, means for leading the vapor to a nipple, a conduit above the nipple into which vapor and air pass, an inverted cup suspended over the. aforesaid conduit to deflect the gases downwardly, into a mixing chamber, a gauze covering to theisaid mixing chamber through which the mixed air and vapor passes. p

Dated this fifth day of October 1920.

7 ROBERT DOWNIE, LESLIE. x

FRANK ERNEST HARGREAVES SNOWDEN.

Vitnesses:

ERA HALE, v i P. M. BONVNERUP. 

